Sodium Carbonate → 1-[6-[3-(4-Morpholinyl)-5-nitrophenyl]-2-pyridinyl]cyclobutanol
反応式
C(=O)([O-])[O-].[Na+].[Na+].Br[C:8]1[N:13]=[C:12]([C:14]2([OH:18])[CH2:17][CH2:16][CH2:15]2)[CH:11]=[CH:10][CH:9]=1.[N+:19]([C:22]1[CH:23]=[C:24]([N:37]2[CH2:42][CH2:41][O:40][CH2:39][CH2:38]2)[CH:25]=[C:26](B2OC(C)(C)C(C)(C)O2)[CH:27]=1)([O-:21])=[O:20]>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].ClCCl>[N:37]1([C:24]2[CH:25]=[C:26]([C:8]3[N:13]=[C:12]([C:14]4([OH:18])[CH2:17][CH2:16][CH2:15]4)[CH:11]=[CH:10][CH:9]=3)[CH:27]=[C:22]([N+:19]([O-:21])=[O:20])[CH:23]=2)[CH2:42][CH2:41][O:40][CH2:39][CH2:38]1参加物
反応条件
- 温度
- 100 °C
実験手順
Pd(dppf)Cl2-dichloromethane adduct (40.8 mg, 0.05 mmol) and sodium carbonate (2 N, 1.5 mL, 3.0 mmol) were added to 1-(6-bromopyridin-2-yl)cyclobutanol (228 mg, 1.0 mmol) and 4-[3-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]morpholine (0.2 N in DMF, 5.0 mL, 1.0 mmol) and the reaction mixture was purged and flushed with N2(g) (3×). The reaction mixture was heated to 100° C. for 4 hours, then cooled to room temperature, diluted with water, extracted with diethyl ether, washed with brine, dried over sodium sulfate, filtered an concentrated under reduced pressure. The crude product was purified by silica gel chromatography (ethyl acetate:hexanes) to afford 1-{6-[3-(morpholin-4-yl)-5-nitrophenyl]pyridin-2-yl}cyclobutanol. 1H NMR (500 MHz, CDCl3) δ 8.30-8.23 (m, 1H), 7.98-7.95 (m, 1H), 7.93, (t, J=7.2 Hz 1H), 7.79 (t, J=2.2, 1H), 7.74 (d, J=7.8, 1H), 7.66 (d, J=7.8, 1H), 5.36 (s, 1H), 4.03-3.84 (m, 4H), 3.46-3.29 (m, 4H), 2.82-2.47 (m, 4H), 2.27-2.09 (m, 1H), 2.05-1.91 (m, 1H).
後処理
- customthe reaction mixture was purged
- customflushed with N2(g) (3×)
- temperaturecooled to room temperature
- additiondiluted with water
- extractionextracted with diethyl ether
- washwashed with brine
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationan concentrated under reduced pressure
- customThe crude product was purified by silica gel chromatography (ethyl acetate:hexanes)
出典と根拠
- ORDレコード
- ord-8764354602794e96b2b97a97ed28a52b
- 出典データセット
- uspto-grants-2016_06
- 特許番号
- US09376418B2
反応ノート
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